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Machine Tap M39x1.5 DIN 374 C HSSE Fra
3214
Thread size: M39x1,575 sizes of this tap
M3x0,35M3,5x0,35M4x0,5M5x0,5M6x0,75M8x0,75M8x1M10x0,5M10x0,75M10x1M10x1,25M11x1M12x1M12x1,25M12x1,5M14x1M14x1,25M14x1,5M15x1M15x1,5M16x0,75M16x1M16x1,5M16x1,75M17x0,75M17x1M18x1M18x1,25M18x1,5M18x2M19x1M20x1M20x1,25M20x1,5M20x2M22x1M22x1,5M22x2M23x1,25M24x1M24x1,5M24x2M25x1M25x1,5M25x2M27x1M27x1,5M27x2M28x1M28x1,5M28x2M30x1M30x1,5M30x2M32x1,5M32x2M33x1,5M33x2M34x1,5M35x1,5M36x1,5M36x2M36x3M38x1,5M39x1M39x1,5M40x1,5M42x2M48x1,5M48x2M48x3M50x1,5M52x1,5M52x3M56x3
€116.53 tax inc.
Net price: €94.74
Description
Material HSSE
Thread size M39x1.5
ChamferC (2–3) threads
Standard DIN 374
Technical data for the M39x1.5 HSSE INOX general-purpose machine tap
| Technical Data | |
|---|---|
| Nominal Diameter d1 | M39x1.5 |
| Thread Pitch P | 1.5 mm |
| Overall Length l1 | 170 mm |
| Flute Length l2 | 30 mm |
| Shank Diameter d2 | 32 mm |
| Square Drive Size a | 24 mm |
| Tap Drill Diameter | 37.5 mm |
| Chamfer | C (2÷3) P |
| Thread tolerance | 6H |
Where chips remain in a straight-flute tap
The flute holds the chips until the tap is reversed out
The straight flute runs parallel to the tap axis. There is no helix to carry chips upward. The chamfer cutting edges are not ground at an angle, so they do not push chips downward. Short chips break into fragments and remain in the flute, next to the cutting edges that produced them. They leave the hole only when the tap is backed out. The M39x1.5 tap has a reduced shank to DIN 374: diameter 32 mm, square size 24 mm.
1
Straight flute – chips remain in the flute, next to the cutting edges that produced them.
2
Chamfer C: 2–3 incomplete threads on the tapered lead.
3
The tap rotates clockwise to cut a right-hand thread.
4
Individual fragments exit at the top, onto the workpiece surface.
5
A few fragments fall below the tip and exit through the bottom of the hole.
6
Feed 1.5 mm/rev, equal to the pitch of the M39x1.5 thread.
M39x1.5 INOX machine tap – general-purpose HSSE tool
In this line, manufacturer Fra offers the M39x1.5 INOX machine tap with optimized cutting geometry for metric fine threads with a pitch of 1.5 mm. The tool meets DIN 374 requirements and provides the 6H thread tolerance class required in series production of mechanical and precision components. Its HSSE steel construction with 5% cobalt guarantees a hardness of 66 HRC and resistance to temperatures up to 650°C in the cutting zone. Form C with straight flutes provides versatility for through and blind holes in stainless steels.
Advantages of the M39x1.5 tap for through and blind holes
- Compatibility with ER40 holders collets and synchronized tapping chucks for CNC machining centers with automatic tool change
- Durability increased by the addition of cobalt in HSSE steel extends cutting edge life by 40-60% compared with standard HSS taps
- Material versatility covering austenitic stainless steels 304 and 316, structural steels up to 800 MPa and nonferrous metals such as aluminum and brass
- Precision to tolerance class 6H meeting the requirements of series production of mechanical and pneumatic components with tight fit tolerances
- Conforms to DIN 374 for fine threads ensures standardized shank dimensions and interchangeability with tools from European manufacturers
- M39x1.5 HSSE machine tap with form C ensures proper chip evacuation in through holes and blind holes without the risk of jamming
The Fra M39x1.5 general-purpose machine tap is used in steel structures, hydraulic power systems, and the production of industrial automation components. The M39x1.5 machine tap for through and blind holes is compatible with automatic tool change systems. The tap drill diameter for the M39x1.5 thread is 37.5 mm.
Cutting data for the M39x1.5 HSSE INOX general-purpose machine tap
| Material | Cutting speed Vc [m/min] | Spindle speed n [rpm] | Feed f [mm/min] |
|---|---|---|---|
| PSteel | 5-20 | 41-163 | 62-244 |
| MStainless steel / INOX | 5-10 | 41-82 | 62-123 |
| KCast iron | 5-15 | 41-122 | 62-183 |
| NAluminum | 10-25 | 82-204 | 123-306 |
Thread preparation M39x1.5
1 Spot drilling
NC spotting drill 90°
2 Drilling
Ø 37.5 mm
3 Tapping
M39x1.5
✓ Done!
Tolerance 6H
Standard: DIN 374 | Chamfer: C (straight) | Application: general-purpose (through and blind holes)
Tolerance 6H — metric thread tolerance classes
| Class | Accuracy | Application | Status |
|---|---|---|---|
| 4H / 4g | High | Precision connections, hydraulics | — |
| 6H / 6g | Standard | Machine building, general-purpose | SELECTED |
| 7H / 8g | Low | Large clearance, easy assembly | — |
6H = internal thread (nut, hole) | 6g = external thread (screw)
Frequently asked questions
With proper cooling and lubrication, the M39x1.5 HSSE tap cuts 400-600 threads in structural steel or 250-350 threads in stainless steel. Dry operation reduces tool life by 40-50%.
Yes, the M39x1.5 HSSE tap with 5% cobalt is designed for austenitic stainless steels 304 and 316. The addition of cobalt increases heat resistance in the cutting zone to 650°C.
An HSSE tap contains 5% cobalt, which increases hardness from 64 to 66 HRC and heat resistance to 650°C. HSSE is suitable for stainless steels, while HSS is suitable only for structural steels up to 800 MPa.
Product accessories
Metal drill bit 37.5 NWKc HSS DIN 345 Werko
Reference: 0420 In stock > 10 items
€44.74
€55.03 brutto
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Shipping
All orders are delivered by courier company GLS. For orders exceeding 369 PLN gross shipping is FREE
| Courier GLS | Przelew24 / Prepayment | 14,76 zł gross | Delivery time 1 working day |
| Courier GLS | Cash on delivery | 17,26 zł gross | Lead time 1 working day |
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